The spatial extent of our universe that we perceive with our minds and senses is present in this world as the Silence. The Silence exists not only in space but also within us in the form of infinite depth. When we are fully present it is possible for us to come in touch with it as if it is the serene inner space of not-a-mind.
Some people are capable of seeing the sound and hearing the color. In science, this perception of music in the form of regularly and spontaneously manifested color patches, stripes, waves is called sound-to-color synaesthesia (chromesthesia).